Three Persistent Issues in Analysis of Clinical Trials Involving Diagnostic Contrast Agents

Autor: Robert Lehr, Franciska K. Kashanian
Rok vydání: 2009
Předmět:
Zdroj: Drug Information Journal. 43:525-532
ISSN: 2164-9200
0092-8615
DOI: 10.1177/009286150904300501
Popis: A clinical trial of the efficacy of a contrast agent used with a diagnostic procedure may present design and analysis issues that need to be considered and managed. Choice of primary variable and summary measures, multiple evaluations on each patient for the primary efficacy analysis (multiplicity), and uninterpretable or nonassessable images or regions of interest in images are three specific concerns discussed. Several methods are presented that should be considered for handling some of these issues.
Databáze: OpenAIRE